package com.itheima.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.common.R;
import com.itheima.entity.Category;
import com.itheima.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@Slf4j
@RequestMapping("/category")
@RestController
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    @PostMapping
    private R<String> save(@RequestBody Category category){

        log.info("category:{}",category);

        categoryService.save(category);
        return R.success("添加成功");
    }

    /**
     * 分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page>page(int page , int pageSize){
        //分页构造器
        Page pageInfo = new Page(page,pageSize);
        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //添加排序条件，根据sort进行排序
        queryWrapper.orderByAsc(Category::getSort);
        //分页查询
        categoryService.page(pageInfo,queryWrapper);
        return  R.success(pageInfo);

    }


    @DeleteMapping
    public R<String> delete(Long id){

        log.info("删除分类,id为:{}",id);

        //调用的是mybatisPlus 中的 removeById，现在不能用这个了要先进行判断。
        //categoryService.removeById(id);

        categoryService.remove(id);
        return  R.success("分类信息删除成功");
    }



    @PutMapping
    public R<String>update(@RequestBody Category category){
        log.info("修改分类信息:{}",category);
        categoryService.updateById(category);
        return  R.success("修改分类信息成功");

    }


/**
 * 根据条件查询分类数据
 * @param category
 * @return
 */
    @GetMapping("/list")
    public R<List<Category>>list(Category category){
        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //添加条件
        queryWrapper.eq(category.getType()!=null,Category::getType,category.getType());
        //添加排序条件
        queryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);
        List<Category> list = categoryService.list(queryWrapper);
        return R.success(list);
    }

}
